Hillsborough, CA Building Permits & Teardown Predictor
We track every Hillsborough building permit, demolition filing, zoning change, and off-market transaction in one place, giving spec builders and developers a single feed of where the market is moving. Each permit is scored against lot value, structure age, and neighborhood comps to surface high-ROI teardown and new-build opportunities before they hit the MLS.
Related guides: Who tracks demolition & building permits in Silicon Valley? · Can you SB 9 lot-split in Hillsborough? Run the screener · How to estimate developer ROI on a teardown rebuild
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The week's best teardown and spec-build plays across the Peninsula, with the developer ROI worked out from permits, parcels, and sold comps. One email a week, no spam.
Why Developers Target Hillsborough
Hillsborough has seen a surge in “mansionization”, older, smaller homes on large lots demolished to build luxury spec homes. AddressIntel's algorithm identifies these aging properties from Floor Area Ratio (FAR), recent neighborhood comps, and permit velocity.
- Automated Demolition Cost Estimates
- New-Build Proforma ROI Generation
- Real-time Permit Webhooks
Hillsborough Market Metrics
| Permits Trackedall permits on file | 4,879 |
|---|---|
| Demolition Permitssince January 1, 2023 | 54 |
| New-Construction Permitssince January 1, 2023 | 25 |
| High-Probability Teardowns | 18 Active |
| Total Declared Permit Valueall permits on file | $420,931,867 |
Hillsborough & San Mateo County Building Permits
AddressIntel tracks 4,879 Hillsborough building permits as part of our San Mateo County building permits dataset, pulled from municipal sources and updated regularly. Whether you need to look up a single Hillsborough building permit for one address or scan San Mateo County building permits for teardown and new-construction activity, every filing is scored for developer ROI and teardown potential.
Working a teardown? See our guide to the demolition permit process, or learn who tracks Silicon Valley building permits and how San Mateo County permit data reaches developers.
Top Teardown Opportunities in Hillsborough
| Address | Teardown Score | List Price |
|---|---|---|
| 20 Castle Ct | 90 | $12,000,000 |
| 2155 Geri Ln | 85 | $8,999,000 |
| 1200 Armsby Dr | 85 | $28,995,000 |
| 1548 Kingswood Dr | 80 | $4,590,000 |
| 860 Longview Rd | 75 | $5,988,000 |
| 150 New Place Rd | 70 | $48,888,000 |
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Recent Hillsborough Building Permits
The latest Hillsborough building permits and demolition filings, drawn from 4,879 permits we track for the city, pulled from municipal sources and updated regularly.
| Address | Type | Value | Issued |
|---|---|---|---|
| 1690 FLORIBUNDA AVE | UPPER SEWER LATERAL - SEWER AND WATER TEST | — | 2026-09-10 |
| 565 CHELMSFORD RD | SWIMMING POOL - REMODEL | — | 2026-09-10 |
| 2435 SUMMIT DR | SOLAR AND STORAGE - SOLAR AND ESS | — | 2026-09-09 |
| 2305 FOREST VIEW AVE | TREE REMOVAL - HAZARD ON PRIVATE PROPERTY | — | 2026-09-09 |
| 1600 MARLBOROUGH RD | LOWER SEWER LATERAL - REPLACEMENT | — | 2026-09-09 |
| 1405 LAKEVIEW DR | LOWER SEWER LATERAL - REPLACEMENT | — | 2026-09-09 |
| 428 EL CENTRO RD | SEWER VIDEO REVIEW FOR PROPERT... | — | 2026-09-09 |
| 55 DOWNEY WAY | SEWER VIDEO REVIEW FOR PROPERT... | — | 2026-09-09 |
Hillsborough Teardown & Permit FAQ
How many teardown opportunities are there in Hillsborough?
AddressIntel currently tracks 18 high-probability teardown opportunities in Hillsborough, scored by lot value, structure age, and neighborhood comps.
What is the typical developer ROI on a Hillsborough teardown?
We do not publish a single Hillsborough figure, because there is no honest one: returns swing on land cost, buildable envelope, and comps. Instead, every Hillsborough property page carries an interactive build-to-zoning proforma (purchase, demolition, construction at current costs, cost of sale against size-matched comps) so each lot is underwritten on its own numbers.
Where can I find recent Hillsborough building permits?
AddressIntel tracks Hillsborough building permits (4,879 permits currently on file), including new construction, additions, and demolition filings, pulled from municipal sources and updated regularly. See the recent permits table above for the latest activity.
How do I find demolition permits in Hillsborough?
AddressIntel tracks Hillsborough building and demolition permits (54 full-structure demolition permits since January 1, 2023), updated regularly from municipal sources.